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Find vertex of y=3x^2+18x+30
answered
Jun 14, 2018
Mathematics
high-school
4
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A DC generator is similar to an AC generator except that in A. DC generators, slip rings produce direct current. B. DC generators, commutators produce direct current. C. AC generators, commutators produce
answered
Mar 5, 2018
Physics
high-school
1
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172k
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